APA (7th ed.) Citation

West, N. (1983). MI6: British secret intelligence service operations, 1909-45. Weidenfeld and Nicolson.

Chicago Style (17th ed.) Citation

West, Nigel. MI6: British Secret Intelligence Service Operations, 1909-45. London: Weidenfeld and Nicolson, 1983.

MLA (9th ed.) Citation

West, Nigel. MI6: British Secret Intelligence Service Operations, 1909-45. Weidenfeld and Nicolson, 1983.

Warning: These citations may not always be 100% accurate.